Because our candles and perfumes are made from natural products, prolonged exposure to direct sunlight can cause fading or discoloration.
Additional Tip for Wood Wicks
Before lighting your candle for a second time and each time thereafter, removing the small amount of black ash that remains at the top of the wick from the previous burn will ensure a longer, cleaner burn.
When the wax has completely re-hardened, knock off the black ash and dispose of it in the trash or sink. Not doing so could cause the flame on the next burn to extinguish on its own.